Questions by RosalindaKea

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1 answer 39 views

A chemical engineering company has a mixture of ethanol and water with a concentration of 30% ethanol to separate using a distillation column. The company needs to obtain a concentration of 80% ethanol in the distillate at a reflux ratio of 3. Calculate the number of theoretical plates required in the column for the separation, assuming no vapor or liquid bypass, and that the minimum vapor velocity is maintained.

asked Jan 22 in Chemical engineering

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1 answer 44 views

According to the biological theory, what is the role of the hypothalamic-pituitary-adrenal axis in anxiety?

asked Jan 17 in Psychology

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1 answer 24 views

Where might a cognitive psychologist look for the cause of depression?

asked Jan 17 in Psychology

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1 answer 43 views

According to the James-Lange theory, what is the relationship between emotions and bodily reactions?

asked Jan 15 in Psychology

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1 answer 20 views

Who developed the psychoanalytic theory?

asked Jan 13 in Psychology

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